Solicitação de exame técnico
#4.1
08/09/1988
RPI 929
Application data
Number
PI8504666Type
Filing
Publication
The letters patent expired on 12/05/2012: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 08/09/1988. We update with every new RPI gazette, published weekly.
Applicants
Instituto Nacional de Tecnologia
RJ, BR
Inventors
C. M. (pessoa física)
BR
E. L. (pessoa física)
BR
J. E. (pessoa física)
BR
L. A. (pessoa física)
BR
P. O. (pessoa física)
BR
S. P. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
08/09/1988
RPI 929
#3.2
07/29/1986
RPI 823
#2.1
12/03/1985
RPI 789
#21.1
Patente extinta em 19/10/2009
12/05/2012
RPI 2187
#16.1
10/19/1999
RPI 1502
#9.1
09/22/1998
RPI 1448
#6.1
09/15/1998
RPI 1447
#6.1
03/10/1998
RPI 1420
05/24/1994
RPI 1225
#4.1
04/19/1994
RPI 1220
02/08/1994
RPI 1210
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